249427 has 2 divisors, whose sum is σ = 249428. Its totient is φ = 249426.
The previous prime is 249421. The next prime is 249433. The reversal of 249427 is 724942.
It is a balanced prime because it is at equal distance from previous prime (249421) and next prime (249433).
It is a cyclic number.
It is not a de Polignac number, because 249427 - 23 = 249419 is a prime.
249427 is a lucky number.
It is equal to p21997 and since 249427 and 21997 have the same sum of digits, it is a Honaker prime.
It is a junction number, because it is equal to n+sod(n) for n = 249395 and 249404.
It is not a weakly prime, because it can be changed into another prime (249421) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124713 + 124714.
It is an arithmetic number, because the mean of its divisors is an integer number (124714).
2249427 is an apocalyptic number.
249427 is a deficient number, since it is larger than the sum of its proper divisors (1).
249427 is an equidigital number, since it uses as much as digits as its factorization.
249427 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 4032, while the sum is 28.
The square root of 249427 is about 499.4266712942. The cubic root of 249427 is about 62.9478866932.
It can be divided in two parts, 249 and 427, that added together give a palindrome (676).
The spelling of 249427 in words is "two hundred forty-nine thousand, four hundred twenty-seven".
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